ocr: THE RED BOX +1 *k oR waka - QU ON-OFF CONSTRUCTION Since 2.2K The largest units in the red box are the telephone be earpiece used. and The battery. push buttons 9V 15K the unit works on 9V and has no coils, 10V parts can box twice. Grayhill are high quality units that won't action bounce are on the you best, and but fire they the make noise when you 01 makes some good ones. Snap hold the box up to the phone. AT .0022 VV Different earpieces or speakers will produce different volumes. If a low im- K pedance (8-32ohms) speaker is used, less volume and more battery drain will .00e2, result. Increa ...
